Germination question

Hello AFN !
Something is unclear to me regarding the post germination process, i.e the phase where we plant the sprouted seed in her final pot.
Should I wet the soil, or not ?
If so, to what extent ?
Last time (first grow) I didn't humidify the soil and I think that maybe the plant was stunted - but maybe I'm wrong lol !
Anyway, if someone could clarify this step, It will be a relief because I will start my second grow very soon...
Thanks !

 

[Bob's Auto's]

I'll try to take a better picture ^^
Is there something I can do about the BB ?

If it's rot you're not going to do much about it...But I can be mistaken, the picture is kinda fuzzy so.